809000973 has 16 divisors (see below), whose sum is σ = 1307476800. Its totient is φ = 490303440.

The previous prime is 809000953. The next prime is 809000993. The reversal of 809000973 is 379000908.

It is an interprime number because it is at equal distance from previous prime (809000953) and next prime (809000993).

It is not a de Polignac number, because 809000973 - 2¹³ = 808992781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (809000923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1361658 + ... + 1362251.

It is an arithmetic number, because the mean of its divisors is an integer number (81717300).

Almost surely, 2^809000973 is an apocalyptic number.

It is an amenable number.

809000973 is a deficient number, since it is larger than the sum of its proper divisors (498475827).

809000973 is a wasteful number, since it uses less digits than its factorization.

809000973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2723929 (or 2723923 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 809000973 is about 28442.9424110798. The cubic root of 809000973 is about 931.7863584216.

The spelling of 809000973 in words is "eight hundred nine million, nine hundred seventy-three", and thus it is an aban number.